I address this by sticking this light
http://www.amazon.com/gp/product/B002WTCHLC 9 inches from my face instead of the prescribed 12 inches for 10,000 lumens, and use it for 40 instead of the normal 30 minutes/day. Inconvenient, but has made
major improvements from the (still useful but not as much) Phillips 6x10 array of blue LEDs I started with at 12 inches 3*30 minutes a day. Also helps me wake up in the morning ^_^.
That said, this seems to be right to me, but I could well believe there are people who need 30,000 lumens and therefore have to get more creative.